Problem
A bingo
B 大小写转换
C 回文数
D 三角形分类
E 简单计算器

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临时测试

Status: Done
Rule: IOI
Problem: 5
Start at: 2025-1-13 15:15
End at: 2025-1-14 15:15
Duration: 1.5 hour(s)
Host: admin
Partic.: 3